LeapFish.com Domain Name Resource Center
URLbuyers.com - create, search, register, negotiate, buy, sell, value, and escrow domain names.
The Trademark Blog: Domain Valuation and Valuation Scams
DomainCritics.com - Domain Name Appraisals
Free Domain Appraisal at Zetetic.com
Afternic Appraisals
EstiBot.com - Free Domain Appraisal and Domain Productivity Tools
The most valuable new gTLDs according to Sedo | Domain Name News (DNN)
Appraise | Domainindex.com
Flashback: If A .US Domain At Best Is Only Worth 1% of a .Com and 25% Of A .CA Why Bother?
GoDaddy builds a new (and better) domain valuation tool - Domain Name Wire | Domain Name News & Views
GoDaddy releases a new domain valuation tool and some interesting stats! - OnlineDomain.com